21819294

素因数分解:

$2^1\times 3^4\times 7^1\times {\mathrm{71}}^1\times {\mathrm{271}}^1$

素因数の和:363

約数の個数: 80

約数和(自身を含む): 56871936

約数和(自身を除く): 35052642

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 71, 81, 126, 142, 162, 189, 213, 271, 378, 426, 497, 542, 567, 639, 813, 994, 1134, 1278, 1491, 1626, 1897, 1917, 2439, 2982, 3794, 3834, 4473, 4878, 5691, 5751, 7317, 8946, 11382, 11502, 13419, 14634, 17073, 19241, 21951, 26838, 34146, 38482, 40257, 43902, 51219, 57723, 80514, 102438, 115446, 134687, 153657, 173169, 269374, 307314, 346338, 404061, 519507, 808122, 1039014, 1212183, 1558521, 2424366, 3117042, 3636549, 7273098, 10909647, 21819294]

約数ペア:

[(1, 21819294), (2, 10909647), (3, 7273098), (6, 3636549), (7, 3117042), (9, 2424366), (14, 1558521), (18, 1212183), (21, 1039014), (27, 808122), (42, 519507), (54, 404061), (63, 346338), (71, 307314), (81, 269374), (126, 173169), (142, 153657), (162, 134687), (189, 115446), (213, 102438), (271, 80514), (378, 57723), (426, 51219), (497, 43902), (542, 40257), (567, 38482), (639, 34146), (813, 26838), (994, 21951), (1134, 19241), (1278, 17073), (1491, 14634), (1626, 13419), (1897, 11502), (1917, 11382), (2439, 8946), (2982, 7317), (3794, 5751), (3834, 5691), (4473, 4878)]